03/03/2026
Why Your Horse Can’t Gain Weight (It’s Not About Calories)
If your horse is eating well but still looks ribby…
It may not be a calorie problem.
It may be an amino acid problem.
Muscle isn’t built from calories alone. It’s built from essential amino acids — especially lysine.
Most grass hays are low in lysine.
So even when protein percentages look “adequate,” the building blocks for muscle may be insufficient.
Without enough lysine:
• Topline won’t develop
• Muscle repair slows
• Hoof quality declines
• Weight gain stalls
You can increase calories all day long — but if one essential amino acid is missing, the body cannot build new tissue efficiently.
Real weight gain starts with better building blocks.
I break this down more fully (including the science) in this week’s blog:
👉 Read the full article here:
Building the Horse — Not Just the Scale If your horse needs to gain weight — but you refuse to spike blood sugar, inflame the gut, or rely on industrial by-products — you are not alone. At Wild Fed, we don’t believe in “fattening up” horses. We believe in rebuilding them from the inside ...